677 lines
18 KiB
C
677 lines
18 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kim Letkeman.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* 1999-02-01 Jean-Francois Bignolles: added option '-m' to display
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* monday as the first day of the week.
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* 1999-02-22 Arkadiusz Mi<4D>kiewicz <misiek@pld.ORG.PL>
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* - added Native Language Support
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*
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* 2000-09-01 Michael Charles Pruznick <dummy@netwiz.net>
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* Added "-3" option to print prev/next month with current.
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* Added over-ridable default NUM_MONTHS and "-1" option to
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* get traditional output when -3 is the default. I hope that
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* enough people will like -3 as the default that one day the
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* product can be shipped that way.
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*
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* 2001-05-07 Pablo Saratxaga <pablo@mandrakesoft.com>
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* Fixed the bugs with multi-byte charset (zg: cjk, utf-8)
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* displaying. made the 'month year' ("%s %d") header translatable
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* so it can be adapted to conventions used by different languages
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* added support to read "first_weekday" locale information
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* still to do: support for 'cal_direction' (will require a major
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* rewrite of the displaying) and proper handling of RTL scripts
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*/
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#include <sys/types.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <locale.h>
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#include "errs.h"
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#include "nls.h"
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#include "../defines.h"
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#ifdef HAVE_langinfo_h
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# include <langinfo.h>
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#else
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# include <localeinfo.h> /* libc4 only */
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#endif
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#include "widechar.h"
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/* allow compile-time define to over-ride default */
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#ifndef NUM_MONTHS
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#define NUM_MONTHS 1
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#endif
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#if ( NUM_MONTHS != 1 && NUM_MONTHS !=3 )
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#error NUM_MONTHS must be 1 or 3
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#endif
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#define THURSDAY 4 /* for reformation */
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#define SATURDAY 6 /* 1 Jan 1 was a Saturday */
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#define FIRST_MISSING_DAY 639799 /* 3 Sep 1752 */
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#define NUMBER_MISSING_DAYS 11 /* 11 day correction */
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#define MAXDAYS 43 /* max slots in a month array */
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#define SPACE -1 /* used in day array */
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static int days_in_month[2][13] = {
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{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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};
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int sep1752[MAXDAYS] = {
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SPACE, SPACE, 1, 2, 14, 15, 16,
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17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE
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}, j_sep1752[MAXDAYS] = {
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SPACE, SPACE, 245, 246, 258, 259, 260,
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261, 262, 263, 264, 265, 266, 267,
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268, 269, 270, 271, 272, 273, 274,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE
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}, empty[MAXDAYS] = {
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE,
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SPACE
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};
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#define DAY_LEN 3 /* 3 spaces per day */
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#define J_DAY_LEN 4 /* 4 spaces per day */
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#define WEEK_LEN 21 /* 7 days * 3 characters */
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#define J_WEEK_LEN 28 /* 7 days * 4 characters */
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#define HEAD_SEP 2 /* spaces between day headings */
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#define J_HEAD_SEP 2
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/* utf-8 can have up to 6 bytes per char; and an extra byte for ending \0 */
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char day_headings[WEEK_LEN*6+1];
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/* week1stday = 1 => " M Tu W Th F S S " */
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char j_day_headings[J_WEEK_LEN*6+1];
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/* week1stday = 1 => " M Tu W Th F S S " */
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const char *full_month[12];
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/* leap year -- account for gregorian reformation in 1752 */
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#define leap_year(yr) \
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((yr) <= 1752 ? !((yr) % 4) : \
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(!((yr) % 4) && ((yr) % 100)) || !((yr) % 400))
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/* number of centuries since 1700, not inclusive */
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#define centuries_since_1700(yr) \
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((yr) > 1700 ? (yr) / 100 - 17 : 0)
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/* number of centuries since 1700 whose modulo of 400 is 0 */
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#define quad_centuries_since_1700(yr) \
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((yr) > 1600 ? ((yr) - 1600) / 400 : 0)
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/* number of leap years between year 1 and this year, not inclusive */
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#define leap_years_since_year_1(yr) \
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((yr) / 4 - centuries_since_1700(yr) + quad_centuries_since_1700(yr))
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/* 0 => sunday (default), 1 => monday */
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int week1stday=0;
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int julian;
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#define FMT_ST_LINES 8
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#define FMT_ST_CHARS 300 /* 90 suffices in most locales */
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struct fmt_st
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{
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char s[FMT_ST_LINES][FMT_ST_CHARS];
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};
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void ascii_day __P((char *, int));
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void center __P((const char *, int, int));
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void day_array __P((int, int, int *));
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int day_in_week __P((int, int, int));
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int day_in_year __P((int, int, int));
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void j_yearly __P((int));
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void do_monthly __P((int, int, struct fmt_st*));
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void monthly __P((int, int));
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void monthly3 __P((int, int));
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void trim_trailing_spaces __P((char *));
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void usage __P((void));
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void yearly __P((int));
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void headers_init(void);
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extern char *__progname;
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int
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main(int argc, char **argv) {
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struct tm *local_time;
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time_t now;
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int ch, month, year, yflag;
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char *progname, *p;
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int num_months = NUM_MONTHS;
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progname = argv[0];
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if ((p = strrchr(progname, '/')) != NULL)
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progname = p+1;
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__progname = progname;
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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#if 0 /* setting week1stday is against man page */
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/*
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* What *is* the first day of the week? Note that glibc does not
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* provide any information today, it (almost) always answers Monday.
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* Sunday is the Jewish and Christian tradition.
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* Sometimes an answer is built into the language:
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* German calls Wednesday "Mittwoch", so starts at Sunday.
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* Portuguese calls Monday "segunda-feira", so starts at Sunday.
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* Russian calls Friday "pyatnitsa", so starts at Monday.
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* ISO 8601 decided to start at Monday.
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*
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* The traditional Unix cal utility starts at Sunday.
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* We start at Sunday and have an option -m for starting at Monday.
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*
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* At some future time this may become -s for Sunday, -m for Monday,
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* no option for glibc-determined locale-dependent version.
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*/
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#ifdef HAVE_langinfo_h
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week1stday = (int)(nl_langinfo(_NL_TIME_FIRST_WEEKDAY))[0];
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#endif
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#endif
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yflag = 0;
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while ((ch = getopt(argc, argv, "13mjsyV")) != -1)
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switch(ch) {
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case '1':
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num_months = 1; /* default */
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break;
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case '3':
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num_months = 3;
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break;
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case 's':
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week1stday = 0; /* default */
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break;
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case 'm':
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week1stday = 1;
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break;
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case 'j':
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julian = 1;
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break;
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case 'y':
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yflag = 1;
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break;
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case 'V':
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printf(_("%s from %s\n"),
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progname, util_linux_version);
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return 0;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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month = year = 0;
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switch(argc) {
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case 2:
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if ((month = atoi(*argv++)) < 1 || month > 12)
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errx(1, _("illegal month value: use 1-12"));
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/* FALLTHROUGH */
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case 1:
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if ((year = atoi(*argv)) < 1 || year > 9999)
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errx(1, _("illegal year value: use 1-9999"));
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break;
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case 0:
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(void)time(&now);
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local_time = localtime(&now);
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year = local_time->tm_year + 1900;
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if (!yflag)
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month = local_time->tm_mon + 1;
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break;
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default:
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usage();
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}
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headers_init();
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if (month && num_months == 1)
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monthly(month, year);
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else if (month && num_months == 3)
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monthly3(month, year);
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else if (julian)
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j_yearly(year);
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else
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yearly(year);
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exit(0);
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}
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#ifndef ENABLE_WIDECHAR
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static char *eos(char *s) {
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while (s && *s)
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s++;
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return s;
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}
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#endif
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void headers_init(void)
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{
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int i, wd;
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#ifdef ENABLE_WIDECHAR
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wchar_t day_headings_wc[22],j_day_headings_wc[29];
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wchar_t wd_wc[10];
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#endif
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strcpy(day_headings,"");
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strcpy(j_day_headings,"");
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#ifdef ENABLE_WIDECHAR
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wcscpy(day_headings_wc,L"");
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wcscpy(j_day_headings_wc,L"");
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#endif
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#ifdef HAVE_langinfo_h
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# define weekday(wd) nl_langinfo(ABDAY_1+wd)
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#else
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# define weekday(wd) _time_info->abbrev_wkday[wd]
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#endif
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for(i = 0 ; i < 7 ; i++ ) {
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wd = (i + week1stday) % 7;
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#ifdef ENABLE_WIDECHAR
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mbstowcs(wd_wc,weekday(wd),10);
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if (wcswidth(wd_wc,10) < 3)
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wcscat(j_day_headings_wc,L" ");
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if (wcswidth(wd_wc,10) < 2) {
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wcscat(day_headings_wc, L" ");
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wcscat(j_day_headings_wc, L" ");
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}
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wcsncat(day_headings_wc,wd_wc,2);
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wcsncat(j_day_headings_wc,wd_wc,3);
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wcscat(day_headings_wc, L" ");
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wcscat(j_day_headings_wc, L" ");
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#else
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sprintf(eos(day_headings), "%2.2s ", weekday(wd));
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sprintf(eos(j_day_headings), "%3.3s ", weekday(wd));
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#endif
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}
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#ifdef ENABLE_WIDECHAR
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wcstombs(day_headings,day_headings_wc,sizeof(day_headings));
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wcstombs(j_day_headings,j_day_headings_wc,sizeof(j_day_headings));
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#endif
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#undef weekday
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for (i = 0; i < 12; i++) {
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#ifdef HAVE_langinfo_h
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full_month[i] = nl_langinfo(MON_1+i);
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#else
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full_month[i] = _time_info->full_month[i];
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#endif
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}
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}
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void
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do_monthly(month, year, out)
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int month, year;
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struct fmt_st* out;
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{
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int col, row, len, days[MAXDAYS];
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char *p, lineout[300];
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#ifdef ENABLE_WIDECHAR
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wchar_t lineout_wc[300];
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#endif
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day_array(month, year, days);
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/* %s is the month name, %d the year number.
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* you can change the order and/or add something her; eg for
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* Basque the translation should be: "%2$dko %1$s", and
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* the Vietnamese should be "%s na(m %d", etc.
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*/
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len = sprintf(lineout, _("%s %d"), full_month[month - 1], year);
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#ifdef ENABLE_WIDECHAR
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if (mbstowcs(lineout_wc,lineout,len) > 0) {
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len = wcswidth(lineout_wc,len);
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} else {
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len = strlen(lineout);
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}
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#endif
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(void)sprintf(out->s[0],"%*s%s",
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((julian ? J_WEEK_LEN : WEEK_LEN) - len) / 2, "", lineout );
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(void)sprintf(out->s[1],"%s",
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julian ? j_day_headings : day_headings);
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for (row = 0; row < 6; row++) {
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for (col = 0, p = lineout; col < 7; col++,
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p += julian ? J_DAY_LEN : DAY_LEN)
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ascii_day(p, days[row * 7 + col]);
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*p = '\0';
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trim_trailing_spaces(lineout);
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(void)sprintf(out->s[row+2],"%s", lineout);
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}
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}
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void
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monthly(month, year)
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int month, year;
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{
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int i;
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struct fmt_st out;
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do_monthly(month, year, &out);
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for ( i = 0; i < FMT_ST_LINES; i++ )
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{
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printf("%s\n", out.s[i]);
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}
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}
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void
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monthly3(month, year)
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int month, year;
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{
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int i;
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int width;
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struct fmt_st out_prev;
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struct fmt_st out_curm;
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struct fmt_st out_next;
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int prev_month, prev_year;
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int next_month, next_year;
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if ( month == 1 )
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{
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prev_month = 12;
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prev_year = year - 1;
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}
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else
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{
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prev_month = month - 1;
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prev_year = year;
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}
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if ( month == 12 )
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{
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next_month = 1;
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next_year = year + 1;
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}
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else
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{
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next_month = month + 1;
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next_year = year;
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}
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do_monthly(prev_month, prev_year, &out_prev);
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do_monthly(month, year, &out_curm);
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do_monthly(next_month, next_year, &out_next);
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width = (julian ? J_WEEK_LEN : WEEK_LEN);
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for ( i = 0; i < FMT_ST_LINES; i++ )
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{
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printf("%-*.*s %-*.*s %-*.*s\n",
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width, width, out_prev.s[i],
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width, width, out_curm.s[i],
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width, width, out_next.s[i] );
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}
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}
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void
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j_yearly(year)
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int year;
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{
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int col, *dp, i, month, row, which_cal;
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int days[12][MAXDAYS];
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char *p, lineout[80];
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(void)sprintf(lineout, "%d", year);
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center(lineout, J_WEEK_LEN * 2 + J_HEAD_SEP, 0);
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(void)printf("\n\n");
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for (i = 0; i < 12; i++)
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day_array(i + 1, year, days[i]);
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(void)memset(lineout, ' ', sizeof(lineout) - 1);
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lineout[sizeof(lineout) - 1] = '\0';
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for (month = 0; month < 12; month += 2) {
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center(full_month[month], J_WEEK_LEN, J_HEAD_SEP);
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center(full_month[month + 1], J_WEEK_LEN, 0);
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(void)printf("\n%s%*s%s\n", j_day_headings, J_HEAD_SEP, "",
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j_day_headings);
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for (row = 0; row < 6; row++) {
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for (which_cal = 0; which_cal < 2; which_cal++) {
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p = lineout + which_cal * (J_WEEK_LEN + 2);
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dp = &days[month + which_cal][row * 7];
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for (col = 0; col < 7; col++, p += J_DAY_LEN)
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ascii_day(p, *dp++);
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}
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*p = '\0';
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trim_trailing_spaces(lineout);
|
||
(void)printf("%s\n", lineout);
|
||
}
|
||
}
|
||
(void)printf("\n");
|
||
}
|
||
|
||
void
|
||
yearly(year)
|
||
int year;
|
||
{
|
||
int col, *dp, i, month, row, which_cal;
|
||
int days[12][MAXDAYS];
|
||
char *p, lineout[80];
|
||
|
||
(void)sprintf(lineout, "%d", year);
|
||
center(lineout, WEEK_LEN * 3 + HEAD_SEP * 2, 0);
|
||
(void)printf("\n\n");
|
||
for (i = 0; i < 12; i++)
|
||
day_array(i + 1, year, days[i]);
|
||
(void)memset(lineout, ' ', sizeof(lineout) - 1);
|
||
lineout[sizeof(lineout) - 1] = '\0';
|
||
for (month = 0; month < 12; month += 3) {
|
||
center(full_month[month], WEEK_LEN, HEAD_SEP);
|
||
center(full_month[month + 1], WEEK_LEN, HEAD_SEP);
|
||
center(full_month[month + 2], WEEK_LEN, 0);
|
||
(void)printf("\n%s%*s%s%*s%s\n", day_headings, HEAD_SEP,
|
||
"", day_headings, HEAD_SEP, "", day_headings);
|
||
for (row = 0; row < 6; row++) {
|
||
for (which_cal = 0; which_cal < 3; which_cal++) {
|
||
p = lineout + which_cal * (WEEK_LEN + 2);
|
||
dp = &days[month + which_cal][row * 7];
|
||
for (col = 0; col < 7; col++, p += DAY_LEN)
|
||
ascii_day(p, *dp++);
|
||
}
|
||
*p = '\0';
|
||
trim_trailing_spaces(lineout);
|
||
(void)printf("%s\n", lineout);
|
||
}
|
||
}
|
||
(void)printf("\n");
|
||
}
|
||
|
||
/*
|
||
* day_array --
|
||
* Fill in an array of 42 integers with a calendar. Assume for a moment
|
||
* that you took the (maximum) 6 rows in a calendar and stretched them
|
||
* out end to end. You would have 42 numbers or spaces. This routine
|
||
* builds that array for any month from Jan. 1 through Dec. 9999.
|
||
*/
|
||
void
|
||
day_array(month, year, days)
|
||
int month, year;
|
||
int *days;
|
||
{
|
||
int day, dw, dm;
|
||
int *d_sep1752;
|
||
|
||
if (month == 9 && year == 1752) {
|
||
d_sep1752 = julian ? j_sep1752 : sep1752;
|
||
memcpy(days, d_sep1752 + week1stday, MAXDAYS * sizeof(int));
|
||
return;
|
||
}
|
||
memcpy(days, empty, MAXDAYS * sizeof(int));
|
||
dm = days_in_month[leap_year(year)][month];
|
||
dw = (day_in_week(1, month, year) - week1stday + 7) % 7;
|
||
day = julian ? day_in_year(1, month, year) : 1;
|
||
while (dm--)
|
||
days[dw++] = day++;
|
||
}
|
||
|
||
/*
|
||
* day_in_year --
|
||
* return the 1 based day number within the year
|
||
*/
|
||
int
|
||
day_in_year(day, month, year)
|
||
int day, month, year;
|
||
{
|
||
int i, leap;
|
||
|
||
leap = leap_year(year);
|
||
for (i = 1; i < month; i++)
|
||
day += days_in_month[leap][i];
|
||
return (day);
|
||
}
|
||
|
||
/*
|
||
* day_in_week
|
||
* return the 0 based day number for any date from 1 Jan. 1 to
|
||
* 31 Dec. 9999. Assumes the Gregorian reformation eliminates
|
||
* 3 Sep. 1752 through 13 Sep. 1752. Returns Thursday for all
|
||
* missing days.
|
||
*/
|
||
int
|
||
day_in_week(day, month, year)
|
||
int day, month, year;
|
||
{
|
||
long temp;
|
||
|
||
temp = (long)(year - 1) * 365 + leap_years_since_year_1(year - 1)
|
||
+ day_in_year(day, month, year);
|
||
if (temp < FIRST_MISSING_DAY)
|
||
return ((temp - 1 + SATURDAY) % 7);
|
||
if (temp >= (FIRST_MISSING_DAY + NUMBER_MISSING_DAYS))
|
||
return (((temp - 1 + SATURDAY) - NUMBER_MISSING_DAYS) % 7);
|
||
return (THURSDAY);
|
||
}
|
||
|
||
void
|
||
ascii_day(p, day)
|
||
char *p;
|
||
int day;
|
||
{
|
||
int display, val;
|
||
static char *aday[] = {
|
||
"",
|
||
" 1", " 2", " 3", " 4", " 5", " 6", " 7",
|
||
" 8", " 9", "10", "11", "12", "13", "14",
|
||
"15", "16", "17", "18", "19", "20", "21",
|
||
"22", "23", "24", "25", "26", "27", "28",
|
||
"29", "30", "31",
|
||
};
|
||
|
||
if (day == SPACE) {
|
||
memset(p, ' ', julian ? J_DAY_LEN : DAY_LEN);
|
||
return;
|
||
}
|
||
if (julian) {
|
||
if ((val = day / 100)) {
|
||
day %= 100;
|
||
*p++ = val + '0';
|
||
display = 1;
|
||
} else {
|
||
*p++ = ' ';
|
||
display = 0;
|
||
}
|
||
val = day / 10;
|
||
if (val || display)
|
||
*p++ = val + '0';
|
||
else
|
||
*p++ = ' ';
|
||
*p++ = day % 10 + '0';
|
||
} else {
|
||
*p++ = aday[day][0];
|
||
*p++ = aday[day][1];
|
||
}
|
||
*p = ' ';
|
||
}
|
||
|
||
void
|
||
trim_trailing_spaces(s)
|
||
char *s;
|
||
{
|
||
char *p;
|
||
|
||
for (p = s; *p; ++p)
|
||
continue;
|
||
while (p > s && isspace(*--p))
|
||
continue;
|
||
if (p > s)
|
||
++p;
|
||
*p = '\0';
|
||
}
|
||
|
||
void
|
||
center(str, len, separate)
|
||
const char *str;
|
||
int len;
|
||
int separate;
|
||
{
|
||
#ifdef ENABLE_WIDECHAR
|
||
wchar_t str_wc[300];
|
||
int str_len;
|
||
|
||
if (mbstowcs(str_wc,str,300) > 0) {
|
||
str_len = wcswidth(str_wc,300);
|
||
} else {
|
||
str_len = strlen(str);
|
||
}
|
||
len -= str_len;
|
||
#else
|
||
len -= strlen(str);
|
||
#endif
|
||
(void)printf("%*s%s%*s", len / 2, "", str, len / 2 + len % 2, "");
|
||
if (separate)
|
||
(void)printf("%*s", separate, "");
|
||
}
|
||
|
||
void
|
||
usage()
|
||
{
|
||
|
||
(void)fprintf(stderr, _("usage: cal [-13smjyV] [[month] year]\n"));
|
||
exit(1);
|
||
}
|